Symfony Form with Form Collection, cannot pass Options array into sub forms

Question

In the Entity controller, the create and edit use the same formType, this then has a definition for a field which is a relation to a collection of Entities. The issue I am having is that I cannot find a way to pass in the $options array into the form builder which would then be available to the sub entity formType. I could pass all the values through the constructors of the formTypes but this feels to be a workaround not a solution.

My controller example (state is the additional option i wish to pass through);

private function createEditForm(Delivery $entity)
{
    $form = $this->createForm(new DeliveryType(), $entity, array(
        'state'=>'update', // This is the extra value I wish to pass through.
        'action' => $this->generateUrl('delivery_update', array('id' => $entity->getId())),
        'method' => 'PUT',
    ));
    $form->add('submit', 'submit', array('label' => 'Update'));
    return $form;
}

and in the form builder class I've included it into the setDefaultOptions() like so

public function setDefaultOptions(OptionsResolverInterface $resolver)
{
    $resolver->setDefaults(array(
        'data_class' => 'Acme\DemoBundle\Entity\Delivery',
        'state' => 'create'

    ));
}

but in this formType class I cannot find a way to pass it into the collection of entities without using the constructor of the collection formType. My main formType class looks like this;

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ->add('date', 'date', array(
                'widget' => 'single_text',
                'datepicker' => true
        ))
        ->add('poNumber')
        ->add('deliveryItems', 'collection', array(
            'type'         => new DeliveryItemType($id),
            'allow_add'    => true,
            'allow_delete' => true,
            'prototype'    => true,
            'by_reference' => false,
        ))
    ;
}

and the sub entity formType looks like this;

public function buildForm(FormBuilderInterface $builder, array $options)
{

    $builder
        ->add('stock', 'entity', array(
            'class' => 'Acme\DemoBundle\Entity\Stock',
            'attr'   =>  array(
                'class'   => 'chosen'
            )
        ))
        ->add('quantity')
    ;
}

The reason I am trying to specify the difference between the update and create is so I do not have to duplicate the formType class files with just a single line change to each. Passing the value through the constructors will work but it's not clean or maintainable. Another possible option is doing this through Twig but I feel that manually outputting the form widgets a step backwards.

My ideal solution would be to give the sub-entity fields a custom status (disabled) on the edit Controller/page so that the relations cannot be reset once it was created as this would cause problems in my code.

I've also looked into Form EventListeners but this is post/pre submit and gives access to the data, I could not force the output of a field to be disabled on the edit page only.

user687861 user687861 · Accepted Answer · 2014-08-18T13:48:04

The issue was that in the DeliveryType class I couldn't work out how to pass options into the sub formType. The information here: http://symfony.com/doc/current/reference/forms/types/collection.html#basic-usage and some help in IRC cleared up what I was missing.

My main formType now has an extra line in the entity collection definition;

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ->add('date', 'date', array(
                'widget' => 'single_text',
                'datepicker' => true
        ))
        ->add('poNumber')
        ->add('deliveryItems', 'collection', array(
            'type'         => new DeliveryItemType($id),
            'allow_add'    => true,
            'allow_delete' => true,
            'prototype'    => true,
            'by_reference' => false,
            'options' => array('state' => $options['state']), // THIS LINE!
        ))
    ;
}

Which then means I can call the $options array in the sub formType (ensure both formTypes have the setDefaultOptions function with the name of the option)

Symfony Form with Form Collection, cannot pass Options array into sub forms

1 Answers